Final answer:
Behavioral genetic research on autobiographical memory has led to inconclusive findings regarding the level of genetic influence because of the complex interaction between genetics and environment in forming cognitive abilities.
Step-by-step explanation:
The subject of the question pertains to the influence of genetics on autobiographical memory based on behavioral genetic research. The answer to the question is d) Inconclusive findings regarding genetic influence on autobiographical memory. This is because, as the referenced information suggests, while there are indicators that genetics play a role in cognitive abilities such as intelligence, the environment also contributes significantly, providing stability and change. The interplay between genetics and environment thus makes it challenging to isolate their individual effects on complex traits like autobiographical memory. This suggests that a definitive answer on the level of genetic influence is still elusive, reaffirming the idea that it is difficult to experimentally separate these factors.